Side by side
Helgray Speedster (Racing Light Blue)vsGruppo Gamma Field III GMT Date
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
Speedster (Racing Light Blue)39mm
Field III GMT Date40mm
Power Reserve
Speedster (Racing Light Blue)40h
Field III GMT Date41h
Water Resistance
Speedster (Racing Light Blue)30m
Field III GMT Date200m
MSRP
Speedster (Racing Light Blue)$299
Field III GMT Date$459
Full specifications
Case
6 specsCategory
Chronograph
GMT
Diameter
39mm
40mm
Thickness
12mm
14mm
Lug-to-Lug
46mm
48.5mm
Lug Width
20mm
22mm
Water Resistance
30m
200m
Crystal & Dial
2 specsAR Coating
Inner
Yes
Lume
None
Super-LumiNova
Movement
3 specsCaliber
Miyota 6S21
Seiko Instruments NH38A
Power Reserve
40h
41h
Complications
None
GMT, Date
Pricing
1 specsMSRP
$299
$459
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